Hmm, I'll have to remember to only send in plain text mode. That looks horrible!
Anyway, Cisco says that it is how I surmised, if no wildcard bits are given IOS uses the classful mask of the network in matching entries in the routing table to be distributed... Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. -----Original Message----- From: Reimer, Fred [mailto:[EMAIL PROTECTED] Sent: Monday, July 14, 2003 1:50 PM To: [EMAIL PROTECTED] Subject: Standard ACLs and distribute-list [7:72253] Here's what should be a simple question. If standard access lists are used with a distribute list, how is the mask treated if none is specified in an ACE? The Cisco documentation says: "The following router configuration mode example causes only one network (network 131.108.0.0) to be advertised by a RIP routing process: access-list 1 permit 131.108.0.0 access-list 1 deny 0.0.0.0 255.255.255.255 router rip network 131.108.0.0 distribute-list 1 out" I asked one of the "mentors" at KnowledgeNet, and they said: "That is not a network, 131.108.0.0. It is a host. You must add the wildcard mask to make it a network address. Sorry, but the Cisco doc is incorrect." So, the entry in the routing table is 131.108.0.0/16, yet Cisco documentation says that a ACE entry of "131.108.0.0" with no wildcard specified, would match. How, exactly, does IOS match routing entries when using a standard ACL in a distribute list? Does it consider any ACEs without a mask to have a normal classful mask? Like 131.108.0.0 would have a mask of /16, and 192.168.1.0 would have a mask of /24? Another example in the IOS 12.2 docs is: "In the following example, access list 1 is applied to outgoing routing updates, and Intermediate Sytem-to-Intermediate System (IS-IS) is enabled on Ethernet interface 0. Only network 131.131.101.0 will be advertised in outgoing IS-IS routing updates. router isis redistribute ospf 109 distribute-list 1 out interface Ethernet 0 ip router isis access-list 1 permit 131.131.101.0 0.0.0.255" So, it would appear that if you don't want the classful mask to be used (when none is specified in the ACE) then you need to include wildcard bits. Thanks, Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72266&t=72253 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
